Joist hanger or stirrup.



PATENTBD APR. 24

F. L. HEUGHBS. JOIST HANGER 0R STIRRUP.

APPLICATION FILED SBPT.27, 1905.

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' FREDERICK LEE HEUGHES, OF ROCHESTER, NEIV YORK.

JOIST HANGER OR STIRFKUF.

Specicaton of Letters Patent.

Patented April 24, 1906.

Application filed September 27,1905. Serial No. 280,379.

"o @ZZ wit/.m1, irl; may concern:

Be it known that I, FREDERICK LEE HEUGHEs, a citizen of the UnitedStates, residing at Rochester, in the county of Monroe and State of NewYork, have invented certain new and useful Improvements in Joist Hangersor Stirrups g and I do hereby declare the following to be a full, clear,and exact dcscription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My present invention relates to improvements in joist hangers orstirrups intended to connect joists to beams; and it is intended toprovide a double hanger which will suspend a pair ol' joists one at eachside of the beam and in which the strength of the hanger is not in anyway dependent upon the uncertain strength oil welding, but is directlygoverned by the shearing strength of a known number ot' rivets, bolts,screws, or pins.

In the manufacture oi' double hangers it has heretofore been common toi'orm part or all of the hanger ol one or more pieces of material inwhich the said pieces or the ends of the said piece are welded together,forming a welded joint, the strength of which weld is of very uncertaincharacter and may vary greatly without the architect being able toascertain such variations or to locate any dangerous weakness. By havingthe parts connected by rivets, bolts, screws, or pins, as will behereinafter described, the strength of the structure may be directlymeasured by the shearing strength of any predetermined number of rivets,&c., and thus said strength will be positively known within reasonablebounds.

My invention will be understood by reference to the accompanyingdrawings, in which the same parts are indicated by the same lettersthroughout the several views.

Figure l is a perspective view showing the double hanger in full linesand the beam and joists in dotted lines. Fig. 2 is a plan view ot' thehanger shown in Fig. l, parts being broken away; and Fig. 3 is an endview of part of the device shown in Fig. l.

The hanger consists of two straps A, each made of a continuous strip ofmetal with a top piece ci. and dependent legs c, fitted to the size el'the beam. nected together by the stirrups B, which have asupporting-sheli` b, side ribs b', which may be tapered, as at b2, andside flanges b3, secured by the rivets c to the legs c of the These twostraps are constraps A. These side ribs b may be perforated, as at 1),tospike the joist to the stirrup.

D represents a beam of any size or desirable construction, as the deviceis adapted for use with any suitable form of beam or girder, whethermade oi' metal, wood, or other material. The straps A may be perforated,as shown at bo, and spiked to the beam D, it' desired.

Two joists E are indicated in dotted lines, one at each side of the beaml), one end ol each being supported in one oi the stirrups B. It will beobvious that the stirrups B may be raised or lowered by shifting theposition otl the holes in the legs c of the straps A.

The stirrups are made by punching out the center section of one leg ofan angle-iron and bending the two remaining end sections of this leg atright angles to the notch.

It will thus be seen that I provide a joisthanger which is provided withoppositelydisposed stirrups, each adapted to support a joist, onopposite sides of the beam. Moreover, the supporting-strips are made ofa single piece of metal without any weld, and the stirrups are securedto said straps by an adequate number of rivets, bolts, pins, or screwswhose shearing strength can be accurately calculated.

The advantages of this construction are its strength, ease ofmanufacture, and inexpensiveness. The strength may be accuratelycalculated and provision made for increased weights by increasing thenumber of rivets, bolts, pins, or screws used. Furthermore, the devicemay be made of any required size and out of flat iron bars andangle-irons, that can easily be purchased in the open market, which factbrings the expense down to a 1n inin iu m Having thus described myinvention, what I claim, and desire to secure by Letters Patent of theUnited States, is-

1. A double joist-hanger comprising two bent straps adapted to go overthe beam, with depending legs, and stirrups each having asupporting-shelf with angle-iron sides made integral with said shelf,with rivets, bolts, screws, or pins connecting said angleiron sides tosaid supporting-straps, substantially as described.

2. A double joist-hanger comprising two supporting-straps each composedof a flat iece of metal bent to 'fit the beam, and each provided withdepending legs, a pair of stirrups, one on each side, each provided witha IOO right angles at each end of the notch, and Ineans for securingsaid stirrups to said straps, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

FREDERICK LEE HEUGI-IES.

Witnesses:

J. A. YOUNG, CHAs. R. KING.

